![]() This formation is responsible for the many scenic, but potentially hazardous, overhanging cliffs along the lakeshore. Atop all this is the hard sandstone crust of the AuTrain formation. This layer is the most susceptible to erosion of the three and accounts for the distinct concave slope of the cliffs. ![]() Above this, composing the majority of the visible cliff-face are the many softer layers comprising the Miners Castle formation. The lower, Jacobson (or Chapel Rock) formation, extends only a few feet above the waters of Lake Superior and is the hardest of the three layers. Over the eons successive layers of sandstone were layed down atop one another. This region includes the famous cliffs of Pictured Rocks and stretches for 13 miles from Munising Bay up to Twelvemile Beach. The first and most dramatic region is to the south. The Lakeshore can be divided into three distinct regions, each occupying about a third of the parks shoreline. At its center it is at its widest where it bulges southward, following the escarpment 3 miles inland around the Beaver Lake basin. The park hugs the shore very closely, for much of its length reaches barely a mile inland. Pictured Rocks encompasses around 33,500 acres of Lake Superior shoreline along with another 38,000 acres inland as a separate, state run, protective “buffer zone.” The park stretches along the Lake Superior shore some 45 miles from Munising to Grand Marais in Michigan’s Upper Peninsula. Within the state of Michigan, Isle Royale alone compares. Pictured Rocks National Lakeshore is one of my most treasured hiking destinations.
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